• CME heights (with respect to the disk center) are measured at the fastest segment of the leading edge.
  • PA= Position Angle measured from Solar North in degrees (counter-clockwise)
  • Halo CMEs are indicated in the "Central PA" column. The letters ("S", "BA", "OA") in the brackets show type of halo CMEs. See examples.
  • Click on date to view Java script movie of the CME.
  • Click on time to see height-time measurements as a text file.
  • Click on speed to view height-time plots of the CME.
  • Beware of data gaps. Check for LASCO/C2 data gaps here.

  • A complete description of the catalog
  • Click here to search the entire catalog.

    First C2 Appearance
    Date Time [UT]
    Central
    PA
    [deg]
    Angular
    Width [deg]
    Linear
    Speed [km/s]
    2nd-order Speed at final height [km/s] 2nd-order Speed at 20 Rs [km/s] Accel
    [m/s2]
    Mass
    [gram]
    Kinetic
    Energy
    [erg]
    MPA [deg] Movies, plots, & links Remarks
    2010/05/01 00:48:05 101 126 408 591 856 27.9*1 4.3e+14*2 3.6e+29*2 89 C2 C3 PHTX DST Java Movie Partial Halo
    2010/05/01 05:36:07 292 21 259 331 777 23.3*1 1.6e+13 5.5e+27 286 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/01 07:12:05 111 108 360 384 493 5.4*1 3.6e+14 2.4e+29 97 C2 C3 PHTX DST Java Movie
    2010/05/01 13:12:06 84 69 233 252 362 3.5*1 2.7e+14 7.4e+28 87 C2 C3 PHTX DST Java Movie Poor Event
    2010/05/01 20:24:06 215 8 612 730 1290 58.2*1 ---- ---- 216 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/02 10:30:50 347 15 343 341 304 -1.2*1 ---- ---- 347 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/02 17:30:05 120 14 290 385 1128 53.8*1 ---- ---- 116 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/02 19:30:05 246 64 242 430 367 5.4 3.3e+15 9.8e+29 252 C2 C3 195 PHTX DST Java Movie
    2010/05/03 13:31:41 252 52 390 349 254 -5.3*1 3.9e+14 3.0e+29 266 C2 C3 195 PHTX DST Java Movie
    2010/05/03 17:06:05 309 10 338 164 0 -56.5*1 ---- ---- 302 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/03 23:54:05 238 27 218 253 261 1.6*1 1.9e+14 4.5e+28 239 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/04 00:30:05 358 28 321 329 381 2.1*1 7.3e+13 3.7e+28 1 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/04 03:30:06 283 22 498 305 0 -59.0*1 4.0e+13 5.0e+28 275 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/04 18:30:05 341 21 425 539 735 18.7*1 5.2e+13 4.7e+28 352 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/05 00:30:05 232 15 259 243 234 -1.1*1 ---- ---- 233 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/05 13:31:45 333 7 519 1032 3339 477.2*1 ---- ---- 338 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/05 17:06:05 331 25 462 566 600 9.5*1 1.2e+14 1.3e+29 338 C2 C3 195 PHTX DST Java Movie
    2010/05/05 17:54:05 236 23 231 314 654 16.8*1 7.0e+13 1.9e+28 228 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/05/05 21:30:05 234 88 573 528 552 -3.0 3.9e+15 6.4e+30 247 C2 C3 195 PHTX DST Java Movie
    2010/05/06 09:54:05 236 26 473 554 542 5.8*1 1.7e+14 1.9e+29 235 C2 C3 195 PHTX DST Java Movie
    2010/05/06 19:54:05 240 30 376 636 1136 57.1*1 9.9e+13 7.0e+28 235 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/07 00:30:05 49 19 179 202 230 1.3*1 ---- ---- 55 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/07 02:54:05 240 22 355 379 384 1.7*1 7.5e+12 4.7e+27 237 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/07 08:06:05 317 23 543 540 541 -0.3 5.0e+14 7.4e+29 324 C2 C3 195 PHTX DST Java Movie
    2010/05/07 08:06:05 240 29 261 341 349 3.6*1 2.2e+14 7.5e+28 235 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/07 16:06:05 292 8 647 592 0 -29.2*1 ---- ---- 291 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/08 02:54:05 312 17 342 421 763 21.4*1 ---- ---- 313 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/08 05:30:06 310 33 622 683 687 6.7 9.6e+14 1.9e+30 320 C2 C3 195 PHTX DST Java Movie
    2010/05/08 18:30:05 43 33 225 251 328 2.8*1 1.8e+14 4.4e+28 50 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/08 19:31:39 312 37 447 479 465 1.6 1.4e+15 1.4e+30 301 C2 C3 195 PHTX DST Java Movie
    2010/05/09 01:31:38 257 20 111 20 0 -20.3*1 5.0e+13 3.1e+27 253 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/09 04:06:06 44 25 389 412 420 1.7*1 2.1e+14 1.6e+29 48 C2 C3 195 PHTX DST Java Movie
    2010/05/09 22:06:05 300 10 285 383 836 27.9*1 ---- ---- 295 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/09 23:06:54 269 15 184 187 199 0.3*1 ---- ---- 263 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/10 13:31:39 312 10 349 470 1305 70.5*1 ---- ---- 308 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/10 16:30:05 42 9 283 325 378 4.1*1 ---- ---- 48 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/10 19:54:05 142 46 106 149 200 1.5*1 1.4e+14 8.1e+27 136 C2 C3 195 PHTX DST Java Movie slowly expanding loop; Very Poor Event
    2010/05/11 02:54:06 51 36 203 248 337 4.0*1 ---- ---- 62 C2 C3 195 PHTX DST Java Movie slowly expanding loop; Very Poor Event
    2010/05/11 21:54:05 166 5 240 213 0 -26.9*1 ---- ---- 164 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/13 00:30:05 313 8 303 419 1015 43.7*1 ---- ---- 310 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/13 08:54:05 255 15 263 316 377 4.2*1 ---- ---- 254 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/13 13:32:10 245 13 407 430 483 3.5*1 ---- ---- 246 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/14 04:30:05 118 16 183 261 745 22.5*1 ---- ---- 119 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/14 09:30:06 250 15 283 236 0 -19.8*1 ---- ---- 253 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/14 13:31:41 125 15 391 304 0 -18.2*1 ---- ---- 122 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/15 00:30:05 114 61 229 208 112 -2.1*1 3.0e+13 8.0e+27 111 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/15 15:30:05 282 56 521 594 597 6.3*1 9.8e+14 1.3e+30 283 C2 C3 195 PHTX DST Java Movie
    2010/05/15 17:30:05 160 10 309 466 1831 138.7*1 ---- ---- 158 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/15 18:54:05 121 9 205 242 336 4.0*1 ---- ---- 116 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/15 21:54:05 286 60 238 341 735 21.5*1 1.3e+14 3.7e+28 289 C2 C3 195 PHTX DST Java Movie Only C2
    2010/05/15 23:30:05 162 6 395 516 1291 65.3*1 ---- ---- 158 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/17 04:30:05 73 9 198 215 436 6.5*1 ---- ---- 74 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/17 06:54:05 304 28 523 540 557 2.4*1 1.9e+14 2.6e+29 300 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/18 06:30:05 301 16 178 203 407 5.9*1 ---- ---- 303 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/18 08:30:05 233 8 533 756 1736 125.4*1 ---- ---- 236 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/19 02:54:05 31 15 320 282 0 -8.9*1 ---- ---- 35 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/19 04:06:05 307 88 223 438 446 8.3*1 1.5e+15 3.7e+29 303 C2 C3 195 PHTX DST Java Movie
    2010/05/19 19:31:40 161 118 129 174 250 2.3*1 3.4e+14 2.8e+28 161 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/20 03:54:05 77 10 197 209 405 5.3*1 ---- ---- 78 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/20 16:06:05 106 51 167 160 138 -0.4*1 9.0e+13 1.2e+28 118 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/21 05:30:05 126 15 203 214 227 0.7*1 ---- ---- 125 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/21 06:30:05 30 7 275 373 756 22.5*1 ---- ---- 31 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/21 08:06:06 315 28 206 174 0 -3.9*1 1.2e+14 2.6e+28 317 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/21 13:31:41 57 13 226 238 408 5.0*1 ---- ---- 60 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/22 03:56:27 225 10 357 662 1789 139.3*1 ---- ---- 228 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/22 14:06:05 229 9 606 687 766 13.3*1 ---- ---- 237 C2 C3 195 PHTX DST Java Movie
    2010/05/22 19:54:05 266 116 215 323 349 4.5*1 1.5e+15 3.6e+29 283 C2 C3 195 PHTX DST Java Movie
    2010/05/23 01:54:05 298 49 248 285 309 2.1*1 9.0e+12 2.8e+27 304 C2 C3 195 PHTX DST Java Movie
    2010/05/23 04:30:05 39 7 450 591 1086 46.1*1 ---- ---- 41 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/05/23 15:08:04 225 12 447 583 813 23.5*1 ---- ---- 231 C2 C3 195 PHTX DST Java Movie
    2010/05/23 18:06:05 Halo 360 258 315 342 3.2*1 ---- ---- 317 C2 C3 195 PHTX DST Java Movie
    2010/05/23 23:54:05 61 11 267 272 294 0.7*1 ---- ---- 65 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/24 06:06:05 334 62 182 254 328 3.9*1 5.2e+13 8.6e+27 337 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/24 14:06:05 Halo 360 427 492 474 3.8*1 ---- ---- 280 C2 C3 195 PHTX DST Java Movie
    2010/05/24 14:54:05 46 22 233 219 202 -0.8*1 1.3e+14 3.6e+28 50 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/24 19:31:39 357 7 459 756 2499 274.9*1 ---- ---- 354 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/25 03:30:05 303 96 253 464 532 11.8*1 1.7e+14 5.5e+28 308 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/25 04:30:06 114 56 379 252 0 -14.0*1 2.0e+14 1.4e+29 104 C2 C3 195 PHTX DST Java Movie
    2010/05/25 20:58:40 258 38 241 223 164 -1.7*1 1.9e+13 5.5e+27 261 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/26 05:30:05 303 44 264 358 549 12.4*1 5.8e+13 2.0e+28 301 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/26 11:30:05 165 115 203 390 371 5.8*1 3.2e+15 6.6e+29 140 C2 C3 195 PHTX DST Java Movie
    2010/05/27 01:31:38 249 69 235 535 489 10.1 2.7e+15 7.6e+29 259 C2 C3 195 PHTX DST Java Movie
    2010/05/27 04:54:07 127 9 290 346 655 15.5*1 ---- ---- 122 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/27 18:06:06 38 16 715 786 883 15.6*1 ---- ---- 45 C2 C3 195 PHTX DST Java Movie
    2010/05/27 20:58:40 107 36 193 178 0 -5.5*1 3.7e+13 6.9e+27 104 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/05/28 00:30:05 254 16 391 427 425 2.6*1 ---- ---- 263 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/28 06:06:05 239 15 360 365 366 0.3*1 ---- ---- 239 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/28 08:30:05 103 17 115 233 1555 99.6*1 ---- ---- 106 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/05/28 11:06:05 248 16 461 579 645 12.9*1 ---- ---- 252 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/28 14:54:05 234 13 371 403 420 2.6*1 ---- ---- 239 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/29 02:30:05 233 8 441 590 790 24.7*1 ---- ---- 245 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/29 11:06:14 260 9 276 412 694 21.6*1 ---- ---- 263 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/29 23:54:05 283 89 215 404 480 9.7*1 6.4e+14 1.5e+29 276 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/30 17:06:05 258 16 311 361 389 3.5*1 ---- ---- 257 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/30 20:06:05 314 40 303 419 456 7.1*1 3.7e+14 1.7e+29 315 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/05/31 02:54:07 6 43 139 109 0 -2.3*1 4.7e+13 4.6e+27 12 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/31 11:30:07 348 27 170 217 325 3.8*1 2.3e+12 3.4e+26 342 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/31 13:54:05 290 14 251 362 510 10.0*1 ---- ---- 284 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/05/31 21:08:02 225 115 406 415 412 0.5*1 4.6e+15 3.8e+30 239 C2 C3 195 PHTX DST Java Movie Poor Event

    *1 Acceleration is uncertain due to either poor height measurement or a small number of height-time measurements (See Section 3.4 of Yashiro et al. 2004 for details).
    *2 Mass and Kinetic Energy are uncertain due to poor mass estimate. Mass measurement assumes that the CME material is in the sky-plane. Kinetic Energy is obtained from the mass and linear speed (see Vourlidas et al. 2000 for details).